Grammy nominee Frank Ocean performs at Levi event

LOS ANGELES (AP) — Frank Ocean is nominated for six awards and will perform at Sunday's Grammys, and he warmed up at an event for a few hundred people Friday night.

The R&B singer-songwriter performed a 30-minute set at the Ace Museum in Los Angeles. He was calm onstage, singing songs like "Pyramid," ''Crack Rock," ''Sierra Leone" and "Thinkin Bout You," which is nominated for record of the year at the Grammys.

The 25-year-old wore his signature headband while purple lights shined in the background. He bent on his knees as his guitarist jammed on one song.

Ocean is part of the six top acts nominated for six awards at the Grammy Awards. His debut studio album, "channel ORANGE," is nominated for album of the year. He's also up for best new artist.

Ocean performed at an event for Levi celebrating the denim brand's 140 year anniversary of its 501 jeans. He'll compete with acts like fun. and The Black Keys in major categories at the Grammys, to air live from the Staples Center on CBS.